NOTICE DATE:  March 31, 2016

NOTICE TYPE:  M-B032516-02 – Outage – Retail/Wholesale

SHORT DESCRIPTION:  UPDATE - Planned system maintenance with impacted services - Schedule Change

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  April 1, 2016 15:00 – 17:00

LONG DESCRIPTION:  ERCOT was unable to complete parts of the planned system maintenance detailed in the market notice below.  The system maintenance originally scheduled for March 31, 2016 15:00 – 17:00 is now re-scheduled for April 1, 2016.

During the April 1, 2016 15:00 – 17:00 outage window, Market Participants may experience intermittent issues with the following services:

· Market submissions and requests via WebServices, Market Manager and Outage Scheduler

· Report publishing to the ERCOT MIS

· Downloading of extracts and reports from the MIS and WebServices

· Net Dependable Capability and Reactive Capability (NDCRC)

Note that the outage start times may be delayed depending on the current system conditions.

ADDITIONAL INFORMATION:  Reports will be rerun and reposted as applicable. The MIS Dashboards and ERCOT.com price displays will not be populated with data during this timeframe.

CONTACT:  If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

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NOTICE DATE:  March 25, 2016

NOTICE TYPE:  M-B032516-01 – Outage – Retail/Wholesale

SHORT DESCRIPTION:  Planned system maintenance with impacted services

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  March 30, 2016 15:30 – 20:30, March 30, 2016 16:30 – 20:30, March 31, 2016 10:00 – 14:00, and March 31, 2016 15:00 – 17:00

LONG DESCRIPTION:  ERCOT will be performing planned system maintenance of several databases and applications on March 30 and March 31, 2016.

During the March 30, 2016 15:30 – 20:30 outage window, please use the following URLs to directly access the Market Manager, Congestion Revenue Right (CRR) Market User Interface, and Outage Scheduler: 

• https://mis.ercot.com/mmsui/mmsui/displayTradesLanding.action
• https://mis.ercot.com/crr/mui/ListAllUserMessage.do (For CRR Account Holders)
• https://mis.ercot.com/crr/mui/editSMPCreditLimit.do (For Counter-Parties)
• https://mis.ercot.com/osrui/osrui/Summary.action

During the March 30, 2016 16:30 – 20:30 outage window, Market Participants may experience intermittent issues with the following services:

· MPIM

· The following ERCOT internet services:

o Texas Renewables – www.texasrenewables.com

o Retail Testing Website - etod.ercot.com

· Market Data Transparency (MDT) Web Services

· Extract Subscriber

· Net Dependable Capability and Reactive Capability (NDCRC)

During the March 31, 2016 10:00 – 14:00 outage window, Market Participants may experience intermittent issues with the following service:

· Report publishing to the ERCOT Market Information System (MIS)

During the March 31, 2016 15:00 – 17:00 outage window, Market Participants may experience intermittent issues with the following services:

· Market submissions and requests via WebServices, Market Manager and Outage Scheduler

· Report publishing to the ERCOT MIS

· Downloading of extracts and reports from the MIS and WebServices

· Net Dependable Capability and Reactive Capability (NDCRC)

Note that the outage start times may be delayed depending on the current system conditions.

ADDITIONAL INFORMATION:  Reports will be rerun and reposted as applicable. The MIS Dashboards and ERCOT.com price displays will not be populated with data during this timeframe.

ACTION REQUIRED:  During the outage ERCOT will change the public IP address of some market facing services.  This change could impact market participants’ ability to access those services, or receive responses from them. 

The specific changes to the services are listed below.

ETOD/Retail Testing Website

https://etod.ercot.com/ - no change

Former Public IP: 66.128.17.159

New Public IP: 66.128.16.172

CONTACT:  If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

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